Sconce



FIG. 1 is a front elevational view of a sconce comprising the new design;

FIG. 2 is a side elevational view;

FIG. 3 is a back elevational view;

FIG. 4 is a side elevational view;

FIG. 5 is a front perspective view;

FIG. 6 is a back perspective view;

FIG. 7 is a top plan view; and,

FIG. 8 is bottom plan view.

The broken lines included in the drawings are for illustrative purposes and form no part of the claimed design. 

CLAIM The ornamental design for a sconce, as shown and described. 